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Finding the Fourth Proportional to 534,641.80, 802,178.70 and 235,179.40

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Solution

The fourth proportional to 534,641.80, 802,178.70 and 235,179.40 is: 352,864.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,641.80 : 802,178.70 = 235,179.40 : x
  2. Step 2: Convert to fraction form
    534,641.80/802,178.70 = 235,179.40/x
  3. Step 3: Cross multiply
    534,641.80x = 802,178.70 × 235,179.40
  4. Step 4: Simplify right side
    534,641.80x = 188,655,905,358.78
  5. Step 5: Solve for x
    x = 188,655,905,358.78/534,641.80
  6. Step 6: Final answer
    x = 352,864.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.